File: qwt__plot__zoomer_8h-source.html

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<h1>qwt_plot_zoomer.h</h1><pre class="fragment"><div>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span>
00002 <span class="comment"> * Qwt Widget Library</span>
00003 <span class="comment"> * Copyright (C) 1997   Josef Wilgen</span>
00004 <span class="comment"> * Copyright (C) 2002   Uwe Rathmann</span>
00005 <span class="comment"> * </span>
00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
00008 <span class="comment"> *****************************************************************************/</span>
00009 
00010 <span class="comment">// vim: expandtab</span>
00011 
00012 <span class="preprocessor">#ifndef QWT_PLOT_ZOOMER</span>
00013 <span class="preprocessor"></span><span class="preprocessor">#define QWT_PLOT_ZOOMER</span>
00014 <span class="preprocessor"></span>
00015 <span class="preprocessor">#include &lt;qvaluestack.h&gt;</span>
00016 <span class="preprocessor">#include "qwt_double_rect.h"</span>
00017 <span class="preprocessor">#include "qwt_plot_picker.h"</span>
00018 
00019 <span class="preprocessor">#if defined(QWT_TEMPLATEDLL)</span>
00020 <span class="preprocessor"></span><span class="comment">// MOC_SKIP_BEGIN</span>
00021 <span class="keyword">template</span> <span class="keyword">class </span>QWT_EXPORT QValueStack&lt;QwtDoubleRect&gt;;
00022 <span class="comment">// MOC_SKIP_END</span>
00023 <span class="preprocessor">#endif</span>
00024 <span class="preprocessor"></span>
<a name="l00059"></a><a class="code" href="class_qwt_plot_zoomer.html">00059</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a>: <span class="keyword">public</span> <a class="code" href="class_qwt_plot_picker.html">QwtPlotPicker</a>
00060 {
00061     Q_OBJECT
00062 <span class="keyword">public</span>:
00063     <a class="code" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a>(<a class="code" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *, <span class="keyword">const</span> <span class="keywordtype">char</span> *name = 0);
00064     <a class="code" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a>(<span class="keywordtype">int</span> xAxis, <span class="keywordtype">int</span> yAxis, 
00065         <a class="code" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *, <span class="keyword">const</span> <span class="keywordtype">char</span> *name = 0);
00066     <a class="code" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a>(<span class="keywordtype">int</span> xAxis, <span class="keywordtype">int</span> yAxis, <span class="keywordtype">int</span> selectionFlags,
00067         DisplayMode cursorLabelMode, <a class="code" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *, <span class="keyword">const</span> <span class="keywordtype">char</span> *name = 0);
00068 
00069     <span class="keyword">virtual</span> <span class="keywordtype">void</span> setZoomBase();
00070     <span class="keyword">virtual</span> <span class="keywordtype">void</span> setZoomBase(<span class="keyword">const</span> <a class="code" href="class_qwt_double_rect.html">QwtDoubleRect</a> &amp;);
00071 
00072     <a class="code" href="class_qwt_double_rect.html">QwtDoubleRect</a> zoomBase() <span class="keyword">const</span>;
00073     <a class="code" href="class_qwt_double_rect.html">QwtDoubleRect</a> zoomRect() <span class="keyword">const</span>;
00074 
00075     <span class="keyword">virtual</span> <span class="keywordtype">void</span> setAxis(<span class="keywordtype">int</span> xAxis, <span class="keywordtype">int</span> yAxis);
00076 
00077     <span class="keywordtype">void</span> setMaxStackDepth(<span class="keywordtype">int</span>);
00078     <span class="keywordtype">int</span> maxStackDepth() <span class="keyword">const</span>;
00079 
00080     <span class="keyword">const</span> QValueStack&lt;QwtDoubleRect&gt; &amp;zoomStack() <span class="keyword">const</span>;
00081     uint zoomRectIndex() <span class="keyword">const</span>;
00082 
00083     <span class="keyword">virtual</span> <span class="keywordtype">void</span> setSelectionFlags(<span class="keywordtype">int</span>);
00084 
00085 <span class="keyword">public</span> slots:
00086     <span class="keywordtype">void</span> moveBy(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y);
00087     <span class="keyword">virtual</span> <span class="keywordtype">void</span> move(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y);
00088 
00089     <span class="keyword">virtual</span> <span class="keywordtype">void</span> zoom(<span class="keyword">const</span> <a class="code" href="class_qwt_double_rect.html">QwtDoubleRect</a> &amp;);
00090     <span class="keyword">virtual</span> <span class="keywordtype">void</span> zoom(<span class="keywordtype">int</span> up);
00091 
00092 signals:
00102     <span class="keywordtype">void</span> zoomed(<span class="keyword">const</span> <a class="code" href="class_qwt_double_rect.html">QwtDoubleRect</a> &amp;rect);
00103 
00104 <span class="keyword">protected</span>:
00105     QValueStack&lt;QwtDoubleRect&gt; &amp;zoomStack();
00106 
00107     <span class="keyword">virtual</span> <span class="keywordtype">void</span> rescale();
00108 
00109     <span class="keyword">virtual</span> <a class="code" href="class_qwt_double_size.html">QwtDoubleSize</a> minZoomSize() <span class="keyword">const</span>;
00110 
00111     <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetMouseReleaseEvent(QMouseEvent *);
00112     <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetKeyPressEvent(QKeyEvent *);
00113 
00114     <span class="keyword">virtual</span> <span class="keywordtype">void</span> begin();
00115     <span class="keyword">virtual</span> <span class="keywordtype">bool</span> end(<span class="keywordtype">bool</span> ok = TRUE);
00116     <span class="keyword">virtual</span> <span class="keywordtype">bool</span> accept(QPointArray &amp;) <span class="keyword">const</span>;
00117 
00118 <span class="keyword">private</span>:
00119     <span class="keywordtype">void</span> init(<span class="keywordtype">int</span> selectionFlags = RectSelection &amp; ClickSelection, 
00120         DisplayMode cursorLabelMode = ActiveOnly);
00121 
00122     uint d_zoomRectIndex;
00123     QValueStack&lt;QwtDoubleRect&gt; d_zoomStack;
00124 
00125     <span class="keywordtype">int</span> d_maxStackDepth;
00126 };
00127             
00128 <span class="preprocessor">#endif</span>
00129 <span class="preprocessor"></span>
00130 <span class="comment">// Local Variables:</span>
00131 <span class="comment">// mode: C++</span>
00132 <span class="comment">// c-file-style: "stroustrup"</span>
00133 <span class="comment">// indent-tabs-mode: nil</span>
00134 <span class="comment">// End:</span>
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Tue Nov 16 21:12:21 2004 for Qwt User's Guide by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 ></a> 1.3.8 </small></address>
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